The client version of Windows isn't the only one getting overhauled. It's a little less sexy, but Windows Server 8 is every bit as different from its predecessors as the Windows 8 client. Server Core (Windows Server running without the graphical user interface) is the, uh, core now, and everything is done using PowerShell - either directly, or through the new Metro-style Server Manager which is a layer on top of PowerShell. The buzzword here is cloud - not the big one, but those smaller ones on intranets.